<template>
  <div class="employees-container">
    <div class="app-container">
      <page-tools>
        <template #left>
          <span>总记录数: {{ total }} 条</span>
        </template>
        <template #right>
          <el-button v-allow="'import_excel'" type="warning" size="small" @click="$router.push('/import')">excel导入</el-button>
          <el-button v-allow="'export_excel'" type="danger" size="small" @click="exportExcel">excel导出</el-button>
          <el-button v-allow="'add'" type="primary" size="small" @click="showDialog= true">新增员工</el-button>
        </template>
      </page-tools>

      <el-card style="margin-top: 10px;">
        <el-table :data="list" border :default-sort="{prop: 'timeOfEntry', order: 'descending'}">
          <el-table-column label="序号" type="index" />
          <el-table-column label="姓名" prop="username" />
          <el-table-column label="员工头像" width="100">
            <template #default="{row}">
              <img
                v-imgerror="require('@/assets/common/bigUserHeader.png')"
                :src="row.staffPhoto"
                alt=""
                style="width:100%"
                @click="showCode(row.staffPhoto)"
              >
            </template>
          </el-table-column>
          <el-table-column label="工号" prop="workNumber" />
          <el-table-column
            label="聘用形式"
            prop="formOfEmployment"
          >
            <template #default="{row}">{{ formatData(row.formOfEmployment) }}</template>

          </el-table-column>
          <el-table-column label="部门" prop="departmentName" />
          <el-table-column label="入职时间" prop="timeOfEntry" sortable="" />
          <!-- <el-table-column label="账户状态" /> -->
          <el-table-column label="操作" width="280">
            <template #default="{row}">
              <el-button type="text" size="small" @click="$router.push(`/employees/detail?userId=${row.id}`)">查看</el-button>
              <el-button type="text" size="small" @click="hAssignRole(row.id)">分配角色</el-button>
              <el-button type="text" size="small" @click="hDel(row.id)">删除</el-button>
            </template>
          </el-table-column>
        </el-table>
        <!-- 分页组件 -->
        <el-row type="flex" justify="center" align="middle" style="height: 60px">
          <el-pagination
            :total="total"
            layout="prev, pager, next"
            :current-page="page"
            :page-size="size"
            @current-change="handleCurrentChange"
          />
          <!-- <el-pagination
            :current-page="page"
            :page-sizes="[100, 200, 300, 400]"
            :page-size="size"
            layout="total, sizes, prev, pager, next, jumper"
            :total="400"
            @size-change="handleSizeChange"
            @current-change="handleCurrentChange"
          /> -->
        </el-row>
      </el-card>

      <el-dialog title="新增员工" :visible.sync="showDialog">
        <addEmployees v-if="showDialog" @close="showDialog=false" @success="hSuccess" />
      </el-dialog>

      <!-- 生成二维码 -->
      <el-dialog title="生成二维码" :visible.sync="showCodeDialog">
        <el-row type="flex" justify="center">
          <canvas ref="myCanvas" />
        </el-row>
      </el-dialog>

      <!-- 分配角色的弹层 -->
      <el-dialog title="分配角色" :visible.sync="AssignRoleDialog">
        <AssignRole
          v-if="AssignRoleDialog"
          :cur-id="curId"
          @success="AssignRoleDialog=false"
        />
      </el-dialog>
    </div>
  </div>
</template>
<script>
import addEmployees from './empDialog.vue'
import AssignRole from './assignRole.vue'
import { getEmployees, delEmployees } from '@/api/employees'
import employeesEnum from '@/constant/employees'
import QRCode from 'qrcode'
// 对数据进行处理
const hireType = {}
employeesEnum.hireType.forEach(item => {
  hireType[item.id] = item.value
})
export default {
  components: {
    addEmployees, AssignRole
  },
  data() {
    return {
      curId: '',
      AssignRoleDialog: false,
      showDialog: false,
      list: [],
      page: 1, // 页码值
      size: 5, // 每页显示的条数
      total: 0,
      showCodeDialog: false
    }
  },
  created() {
    this.loadEmployees()
  },
  methods: {
    hAssignRole(id) {
      this.curId = id
      this.AssignRoleDialog = true
    },
    // 显示二维码
    showCode(url) {
      if (url) {
        this.showCodeDialog = true // dom更新是异步
        // 生成二维码
        this.$nextTick(() => {
          const canvas = this.$refs.myCanvas
          QRCode.toCanvas(canvas, url)
        })
      } else {
        this.$message.error('请输入正确的图片')
      }
    },
    exportExcel() {
      // 1.发送到后台获取数据
      // 2. 将获取到的数据进行格式化处理
      const { tHeader, data } = this.transZhKeyToExcel(this.list)
      // 3.将格式化好的数据写入到 excel 文件中
      import('@/vendor/Export2Excel').then(excel => {
        excel.export_json_to_excel({
          header: tHeader,
          data,
          filename: this.filename,
          autoWidth: this.autoWidth,
          bookType: this.bookType
        })
      })
    },
    transZhKeyToExcel(list) {
      // 中英文的映射对象
      const mapInfo = {
        'id': '编号',
        'password': '密码',
        'mobile': '手机号',
        'username': '姓名',
        'timeOfEntry': '入职日期',
        'formOfEmployment': '聘用形式',
        'correctionTime': '转正日期',
        'workNumber': '工号',
        'departmentName': '部门',
        'staffPhoto': '头像地址'
      }

      // 1.生成表头
      const one = list[0]
      if (!one) return
      console.log(Object.keys(one))
      const tHeader = Object.keys(one).map(enkey => {
        return mapInfo[enkey]
      })

      // 2.生成表的内容
      const data = list.map(item => {
        return Object.values(item)
      })
      // console.log(data);

      return { tHeader, data }
    },
    hDel(id) {
      this.$confirm('此操作将永久删除部门, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(async() => {
        // 做删除
        const res = await delEmployees(id)
        if (res.code === 10000) {
          this.$message.success(res.message)
          if (this.list.length === 1) {
            this.page--
            if (this.page <= 0) {
              this.page = 1
            }
          }
          this.loadEmployees()
        }
      }).catch(() => {
        this.$message({
          type: 'info',
          message: '已取消删除'
        })
      })
    },
    hSuccess() {
      this.total++
      // 计算最大页数
      const maxPage = Math.ceil(this.total / this.size)
      this.page = maxPage
      this.loadEmployees()
      this.showDialog = false
    },
    // 当 当前页码值切换时触发
    handleCurrentChange(val) {
      // console.log(`当前页: ${val}`)
      this.page = val
      this.loadEmployees()
    },
    // 格式化数据的函数
    formatData(id) {
      return hireType[id] || '未知'
    },
    async loadEmployees() {
      try {
        const res = await getEmployees({ page: this.page, size: this.size })
        console.log(res, 'getEmployees')
        if (res.code !== 10000) return this.$message.error(res.message)
        this.$message.success(res.message)
        this.list = res.data.rows
        this.total = res.data.total
      } catch (error) {
        console.log(error)
      }
    }
  }
}
</script>
